Re: [PATCH v4 2/3] scsi: storvsc: Use vmbus_requestor to generate transaction IDs for VMBus hardening

From: Martin K. Petersen
Date: Wed Jul 01 2020 - 22:10:14 EST



Andres,

> Currently, pointers to guest memory are passed to Hyper-V as
> transaction IDs in storvsc. In the face of errors or malicious
> behavior in Hyper-V, storvsc should not expose or trust the
> transaction IDs returned by Hyper-V to be valid guest memory
> addresses. Instead, use small integers generated by vmbus_requestor as
> requests (transaction) IDs.

Acked-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

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Martin K. Petersen Oracle Linux Engineering